Star · M3
GJ 1252
GJ 1252 is a main-sequence star of spectral type M3 in the constellation Telescopium, 66.5 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Telescopium |
|---|---|
| Distance | 66.5 light-years (20.4 pc) |
| Apparent magnitude | magnitude 12.23 |
| Absolute magnitude | magnitude 10.68 |
| Spectral type | M3 |
| Surface temperature | 3,460 K |
| Luminosity | 0.0196 L☉ |
| Radius | 0.391 R☉ |
| Mass | 0.381 M☉ |
| Age | 3.9 billion years |
| Metallicity [Fe/H] | 0.10 |
| Right ascension (J2000) | 20h 27m 43.1s |
| Declination (J2000) | −56° 26′ 55″ |
| Space velocity (relative to the Sun) | 126.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.23. Visible from the whole Southern Hemisphere and north to latitude 34° N. South of latitude 34° S it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1960. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.2 million years.
The Sun seen from there
From a planet around GJ 1252, the Sun would look like a star of magnitude 6.38, in the direction where our sky has the constellation Lynx. It would be visible to the naked eye.
Planets
- GJ 1252 b 0.518-day orbit · 1.19 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 788.1 2.53 light-years
- CWISE J205834.45-513459.4 7.71 light-years
- Gl 773.6 8.87 light-years
- SIPS J2045-6332 11.6 light-years
- GJ 4112 11.7 light-years
- Gl 769 11.7 light-years
- GJ 1247 11.9 light-years
- Gl 787 12.7 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.